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Biology

GCSE · Edexcel

QuestionsFlashcards

Photosynthesis
Plant Structure
Transport in Plants
Plant Hormones
- Plant Hormones & Growth
  7
- Using Plant Hormones Commercially
  7

Transport in Animals
- The Need for Transport
  7
- Factors Affecting the Rate of Diffusion
  7
Respiration
- Respiration
  6
- Practical: Investigating Respiration
  5
Gas Exchange
Circulatory System
- The Blood & Blood Vessels
  6
- The Circulatory System
  8

The Human Nervous System Flashcards

All 6 cards in this deck

What makes up the central nervous system (CNS)?: The brain and the spinal cord.
In a neurone, what is the difference between a dendron and an axon?: A dendron carries the impulse towards the cell body; an axon carries it away from the cell body.
What is the function of the myelin sheath on a neurone?: Insulates the axon and speeds up transmission of the electrical impulse.
What is the function of a sensory neurone?: Carries electrical impulses from a receptor to the CNS.
What is the function of a motor neurone?: Carries electrical impulses from the CNS to an effector (a muscle or gland).
True or false? Impulses travel along a neurone as chemical messages.: False. They travel along a neurone as electrical impulses; chemicals are only used at synapses.